[API] Fix setter of menuitem "submenu" does't work.
[API][WIN] Force the "NativeMenuWin" do not being a owner-draw control, and set the icon by nw self. Fix #349.
[test]native modules do not prebuild
Merge pull request #369 from zhchbin/master

Prevent the "NativeMenuWin" from being a owner-draw control. Fix #349
bump version to 0.4.1-pre
remove the binary hack introduced in 3160fecfc84
tests/README.md how to build native modules 
Merge pull request #370 from owenc4a4/native

[test]native modules do not prebuild